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TECHNICAL INFORMATION
57
87-900-855-01 (B)
In this case the value to be assigned to the ADDRESS
field must be 80 hex.
where :
<STX>= 0x02
<ADR> =
0x80
<WINDOWS>=' 000 '...' 999' window number
the meaning of the window
depends to the device type
<COMMAND>= 0x30 :window value reading
0x31 :window writing
<DATA> =
alphanumeric ASCII string
containing, in the case of writing
operation,the parameter to input
into the window addressed by
the field <WINDOW>This field
may have variable length
according to the data type
contained in the window where
you are working in. In the case of
reading request of a window, the
data field doesn’t exist.
<ETX>= 0x03
<CRC>=
XOR among all the characters
following <STX>=(with exception
of <STX>), including the end
character <ETX> hexadecimally
encoded by two ASCII characters.
When a slave device is addressed by the master:
In case of reading request of the value contained in
a window, the slave answers a string equal to the
one sent by the master but in addition there is the
field <DATA> containing the value of the
window.The format of the field <DATA> depends to
the window type.
The different types are:
Length
Characters
Permitted
Logic (L)
1
‘0’=OFF
‘1’=ON
Numeric (N)
6
‘-‘, ‘.‘,‘0’...’9’
(Justifield to the right
with ‘0’)
Alphanumeric (A)
max 10
‘ ‘...’_’
EXAMPLES:
Command
:
START
Source
:
PC
Destination :
Inverter
02
80
30
30
30
31
31
03
42
33
STX
ADDR
WINDOW
WR
ON
ETX
CRC
Source
:
Inverter
Destination :
PC
02
80
06
03
38
35
STX
ADDR
ACK
ETX
CRC
Command
:
STOP
Source
:
PC
Destination :
Inverter
02
80
30
30
30
31
30
03
42
32
STX
ADDR
WINDOW
WR
OF
F
ETX
CRC
Source
:
Inverter
Destination :
PC
02
80
06
03
38
35
STX
ADDR
ACK
ETX
CRC
Command
:
SOFT-START (ON)
Source
:
PC
Destination :
Inverter
02
80
31
30
30
31
31
03
42
32
STX
ADDR
WINDOW
WR
ON
ETX
CRC
Source
:
Inverter
Destination :
PC
02
80
06
03
38
35
STX
ADDR
ACK
ETX
CRC
Command
:
SOFT-START (OFF)
Source
:
PC
Destination :
Inverter
02
80
31
30
30
31
30
03
42
33
STX
ADDR
WINDOW
WR
OF
F
ETX
CRC
Содержание Turbo-V 6000
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